In the meantime the royal commissioner, now become legal governor of Peru, had sailed from Panama. Shipwrecked off the coast of southern Colombia, he resolved to proceed by land, and disembarking at Buenaventura, made his way with infinite difficulty through the tangled forests and steep defiles of the Maritime Cordillera to the valley of the Cauca River. Thence to Quito over the highlands of Popayan and Pasto was easier. As soon as the news of Pizarro's murder reached him he hastened south, receiving many offers of help from the friends of the dead governor. At Jauja he found a considerable army ready to his orders, so he proceeded promptly to Guamanga, to which point Almagro was advancing from Cuzco. The soldiers of the young half-breed knew that they were fighting with halters round their necks, and the battle was the bloodiest since the Spaniards had landed in Peru. Of the twelve hundred white men who went into the fight only five hundred escaped unwounded. The rebels were practically annihilated. Two days after the battle Pizarro's murderers were executed in the great square at Guamanga. Young Almagro managed to escape to Cuzco, but he was quickly captured and relentlessly put to death. Upon the death of Francisco Pizarro the right to nominate a governor reverted to the Spanish Crown. Though some disappointment was felt that Gonzalo Pizarro had not been appointed, Vaca de Castro succeeded without opposition. Gonzalo's selection would not have suited the new policy of the Spanish government. Las Casas had written his famous book exposing the unspeakable iniquities of the earlier conquerors toward the West Indian natives. It produced a tremendous effect on public opinion, and the authorities at Madrid decided to root up Indian slavery, and gradually abolish the existing "encomiendas." Manifestly, such a step would excite bitter dissatisfaction among the adventurers in Peru, and it seemed best to name a viceroy, who would be _ipso facto_ vested with absolute power, and not subject to the influence of the "conquistadores."